Back to results
US 2024/0082482 A1Published application
Membrane plunger fluid pressure switch
AssigneeBecton, Dickinson and Company
InventorsAndrew J. BEAUPRE, Scott STEWART
Life of this patent
Estimating the term…
Abstract
A pressure switch is provided and includes an elastic membrane disposed such that pressure from fluid within a fluid path deforms the elastic membrane toward a plunger, thereby moving the plunger. The plunger is disposed between the membrane and an upper plate and is moveable along an axis extending between the membrane and the upper plate. A threshold pressure on the membrane from the fluid within the fluid path deforms the membrane, thereby moving the plunger toward the upper plate.
Claims19
A pressure switch comprising:
- an upper plate;
- a baseplate, opposite the upper plate, having an opening therein in communication with a fluid path;
- an elastic membrane sealing the opening in a baseplate, wherein the elastic membrane is deformable by pressure from fluid within the fluid path;
- a plunger disposed between the upper plate and the membrane and moveable along an axis extending between the upper plate and the membrane;
- and
- a spring biasing the plunger toward the membrane;
- wherein a threshold pressure on the elastic membrane from the fluid within the fluid path moves the plunger toward the upper plate.
4 more elements
An insulin delivery device comprising:
- a power and control system, and
- a pumping system controlled by the power and control system, the pumping system comprising:
- a fill port configured to receive a fluid medication from an external source,
- a reservoir configured to receive the fluid medication from the fill port and store the fluid medication therein,
- a cannula configured to deliver the fluid medication to a patient,
- a pump configured to move the fluid medication from the reservoir to the cannula, and
- a pressure switch, disposed on a fluid path between the fill port and the cannula, the pressure switch comprising:
- an upper plate;
- a baseplate, opposite the upper plate, having an opening therein in communication with the fluid path;
- an elastic membrane sealing the opening in a baseplate, wherein the elastic membrane is deformable by pressure from the fluid medication within the fluid path;
- a plunger disposed between the upper plate and the membrane and moveable along an axis extending between the upper plate and the membrane;
- and
- a spring biasing the plunger toward the membrane;
- wherein a threshold pressure on the elastic membrane from the fluid medication within the fluid path moves the plunger toward the upper plate.
11 more elements
Dependencies are inferred from the claim text.